text: // SPDX-License-Identifier: GPL-2.0-only
  /* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@netfilter.org> */
  
  /* Kernel module implementing an IP set type: the hash:ip,port,net type */
  
  #include <linux/jhash.h>
  #include <linux/module.h>
  #include <linux/ip.h>
  #include <linux/skbuff.h>
  #include <linux/errno.h>
  #include <linux/random.h>
  #include <net/ip.h>
  #include <net/ipv6.h>
  #include <net/netlink.h>
  #include <net/tcp.h>
  
  #include <linux/netfilter.h>
  #include <linux/netfilter/ipset/pfxlen.h>
  #include <linux/netfilter/ipset/ip_set.h>
  #include <linux/netfilter/ipset/ip_set_getport.h>
  #include <linux/netfilter/ipset/ip_set_hash.h>
  
  #define IPSET_TYPE_REV_MIN	0
  /*				0    Comments support added */
  /*				1    Forceadd support added */
  #define IPSET_TYPE_REV_MAX	2 /* skbinfo support added */
  
  MODULE_LICENSE("GPL");
  MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
  IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
  MODULE_ALIAS("ip_set_hash:net,port,net");
  
  /* Type specific function prefix */
  #define HTYPE		hash_netportnet
  #define IP_SET_HASH_WITH_PROTO
  #define IP_SET_HASH_WITH_NETS
  #define IPSET_NET_COUNT 2
  
  /* IPv4 variant */
  
  /* Member elements */
  struct hash_netportnet4_elem {
  	union {
  		__be32 ip[2];
  		__be64 ipcmp;
  	};
  	__be16 port;
  	union {
  		u8 cidr[2];
  		u16 ccmp;
  	};
  	u16 padding;
  	u8 nomatch;
  	u8 proto;
  };
  
  /* Common functions */
  
  static inline bool
  hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
  			    const struct hash_netportnet4_elem *ip2,
  			    u32 *multi)
  {
  	return ip1->ipcmp == ip2->ipcmp &&
  	       ip1->ccmp == ip2->ccmp &&
  	       ip1->port == ip2->port &&
  	       ip1->proto == ip2->proto;
  }
  
  static inline int
  hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
  {
  	return elem->nomatch ? -ENOTEMPTY : 1;
  }
  
  static inline void
  hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
  {
  	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
  }
  
  static inline void
  hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
  {
  	swap(*flags, elem->nomatch);
  }
  
  static inline void
  hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
  				 struct hash_netportnet4_elem *orig)
  {
  	elem->ip[1] = orig->ip[1];
  }
  
  static inline void
  hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
  			      u8 cidr, bool inner)
  {
  	if (inner) {
  		elem->ip[1] &= ip_set_netmask(cidr);
  		elem->cidr[1] = cidr;
  	} else {
  		elem->ip[0] &= ip_set_netmask(cidr);
  		elem->cidr[0] = cidr;
  	}
  }
  
  static bool
  hash_netportnet4_data_list(struct sk_buff *skb,
  			   const struct hash_netportnet4_elem *data)
  {
  	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
  
  	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
  	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
  	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
  	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
  	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
  	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
  	    (flags &&
  	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
  		goto nla_put_failure;
  	return false;
  
  nla_put_failure:
  	return true;
  }
  
  static inline void
  hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
  			   const struct hash_netportnet4_elem *d)
  {
  	next->ipcmp = d->ipcmp;
  	next->port = d->port;
  }
  
  #define MTYPE		hash_netportnet4
  #define HOST_MASK	32
  #include "ip_set_hash_gen.h"
  
  static void
  hash_netportnet4_init(struct hash_netportnet4_elem *e)
  {
  	e->cidr[0] = HOST_MASK;
  	e->cidr[1] = HOST_MASK;
  }
  
  static int
  hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
  		      const struct xt_action_param *par,
  		      enum ipset_adt adt, struct ip_set_adt_opt *opt)
  {
  	const struct hash_netportnet4 *h = set->data;
  	ipset_adtfn adtfn = set->variant->adt[adt];
  	struct hash_netportnet4_elem e = { };
  	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
  
  	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
  	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
  	if (adt == IPSET_TEST)
  		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
  
  	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
  				 &e.port, &e.proto))
  		return -EINVAL;
  
  	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
  	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
  	e.ip[0] &= ip_set_netmask(e.cidr[0]);
  	e.ip[1] &= ip_set_netmask(e.cidr[1]);
  
  	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
  }
  
  static int
  hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
  		      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
  {
  	const struct hash_netportnet4 *h = set->data;
  	ipset_adtfn adtfn = set->variant->adt[adt];
  	struct hash_netportnet4_elem e = { };
  	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
  	u32 ip = 0, ip_to = 0, p = 0, port, port_to;
  	u32 ip2_from = 0, ip2_to = 0, ip2;
  	bool with_ports = false;
  	int ret;
  
  	if (tb[IPSET_ATTR_LINENO])
  		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
  
  	hash_netportnet4_init(&e);
  	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
  		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
  		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
  		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
  		return -IPSET_ERR_PROTOCOL;
  
  	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip);
  	if (ret)
  		return ret;
  
  	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from);
  	if (ret)
  		return ret;
  
  	ret = ip_set_get_extensions(set, tb, &ext);
  	if (ret)
  		return ret;
  
  	if (tb[IPSET_ATTR_CIDR]) {
  		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
  		if (e.cidr[0] > HOST_MASK)
  			return -IPSET_ERR_INVALID_CIDR;
  	}
  
  	if (tb[IPSET_ATTR_CIDR2]) {
  		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
  		if (e.cidr[1] > HOST_MASK)
  			return -IPSET_ERR_INVALID_CIDR;
  	}
  
  	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
  
  	if (tb[IPSET_ATTR_PROTO]) {
  		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
  		with_ports = ip_set_proto_with_ports(e.proto);
  
  		if (e.proto == 0)
  			return -IPSET_ERR_INVALID_PROTO;
  	} else {
  		return -IPSET_ERR_MISSING_PROTO;
  	}
  
  	if (!(with_ports || e.proto == IPPROTO_ICMP))
  		e.port = 0;
  
  	if (tb[IPSET_ATTR_CADT_FLAGS]) {
  		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
  
  		if (cadt_flags & IPSET_FLAG_NOMATCH)
  			flags |= (IPSET_FLAG_NOMATCH << 16);
  	}
  
  	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
  	if (adt == IPSET_TEST ||
  	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
  		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
  		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
  		ret = adtfn(set, &e, &ext, &ext, flags);
  		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
  		       ip_set_eexist(ret, flags) ? 0 : ret;
  	}
  
  	ip_to = ip;
  	if (tb[IPSET_ATTR_IP_TO]) {
  		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
  		if (ret)
  			return ret;
  		if (ip > ip_to)
  			swap(ip, ip_to);
  		if (unlikely(ip + UINT_MAX == ip_to))
  			return -IPSET_ERR_HASH_RANGE;
  	} else {
  		ip_set_mask_from_to(ip, ip_to, e.cidr[0]);
  	}
  
  	port_to = port = ntohs(e.port);
  	if (tb[IPSET_ATTR_PORT_TO]) {
  		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
  		if (port > port_to)
  			swap(port, port_to);
  	}
  
  	ip2_to = ip2_from;
  	if (tb[IPSET_ATTR_IP2_TO]) {
  		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
  		if (ret)
  			return ret;
  		if (ip2_from > ip2_to)
  			swap(ip2_from, ip2_to);
  		if (unlikely(ip2_from + UINT_MAX == ip2_to))
  			return -IPSET_ERR_HASH_RANGE;
  	} else {
  		ip_set_mask_from_to(ip2_from, ip2_to, e.cidr[1]);
  	}
  
  	if (retried) {
  		ip = ntohl(h->next.ip[0]);
  		p = ntohs(h->next.port);
  		ip2 = ntohl(h->next.ip[1]);
  	} else {
  		p = port;
  		ip2 = ip2_from;
  	}
  
  	do {
  		e.ip[0] = htonl(ip);
  		ip = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
  		for (; p <= port_to; p++) {
  			e.port = htons(p);
  			do {
  				e.ip[1] = htonl(ip2);
  				ip2 = ip_set_range_to_cidr(ip2, ip2_to,
  							   &e.cidr[1]);
  				ret = adtfn(set, &e, &ext, &ext, flags);
  				if (ret && !ip_set_eexist(ret, flags))
  					return ret;
  
  				ret = 0;
  			} while (ip2++ < ip2_to);
  			ip2 = ip2_from;
  		}
  		p = port;
  	} while (ip++ < ip_to);
  	return ret;
  }
  
  /* IPv6 variant */
  
  struct hash_netportnet6_elem {
  	union nf_inet_addr ip[2];
  	__be16 port;
  	union {
  		u8 cidr[2];
  		u16 ccmp;
  	};
  	u16 padding;
  	u8 nomatch;
  	u8 proto;
  };
  
  /* Common functions */
  
  static inline bool
  hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
  			    const struct hash_netportnet6_elem *ip2,
  			    u32 *multi)
  {
  	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
  	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
  	       ip1->ccmp == ip2->ccmp &&
  	       ip1->port == ip2->port &&
  	       ip1->proto == ip2->proto;
  }
  
  static inline int
  hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
  {
  	return elem->nomatch ? -ENOTEMPTY : 1;
  }
  
  static inline void
  hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
  {
  	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
  }
  
  static inline void
  hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
  {
  	swap(*flags, elem->nomatch);
  }
  
  static inline void
  hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
  				 struct hash_netportnet6_elem *orig)
  {
  	elem->ip[1] = orig->ip[1];
  }
  
  static inline void
  hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
  			      u8 cidr, bool inner)
  {
  	if (inner) {
  		ip6_netmask(&elem->ip[1], cidr);
  		elem->cidr[1] = cidr;
  	} else {
  		ip6_netmask(&elem->ip[0], cidr);
  		elem->cidr[0] = cidr;
  	}
  }
  
  static bool
  hash_netportnet6_data_list(struct sk_buff *skb,
  			   const struct hash_netportnet6_elem *data)
  {
  	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
  
  	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
  	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
  	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
  	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
  	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
  	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
  	    (flags &&
  	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
  		goto nla_put_failure;
  	return false;
  
  nla_put_failure:
  	return true;
  }
  
  static inline void
  hash_netportnet6_data_next(struct hash_netportnet6_elem *next,
  			   const struct hash_netportnet6_elem *d)
  {
  	next->port = d->port;
  }
  
  #undef MTYPE
  #undef HOST_MASK
  
  #define MTYPE		hash_netportnet6
  #define HOST_MASK	128
  #define IP_SET_EMIT_CREATE
  #include "ip_set_hash_gen.h"
  
  static void
  hash_netportnet6_init(struct hash_netportnet6_elem *e)
  {
  	e->cidr[0] = HOST_MASK;
  	e->cidr[1] = HOST_MASK;
  }
  
  static int
  hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
  		      const struct xt_action_param *par,
  		      enum ipset_adt adt, struct ip_set_adt_opt *opt)
  {
  	const struct hash_netportnet6 *h = set->data;
  	ipset_adtfn adtfn = set->variant->adt[adt];
  	struct hash_netportnet6_elem e = { };
  	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
  
  	e.cidr[0] = INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
  	e.cidr[1] = INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
  	if (adt == IPSET_TEST)
  		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
  
  	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
  				 &e.port, &e.proto))
  		return -EINVAL;
  
  	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
  	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
  	ip6_netmask(&e.ip[0], e.cidr[0]);
  	ip6_netmask(&e.ip[1], e.cidr[1]);
  
  	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
  }
  
  static int
  hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
  		      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
  {
  	const struct hash_netportnet6 *h = set->data;
  	ipset_adtfn adtfn = set->variant->adt[adt];
  	struct hash_netportnet6_elem e = { };
  	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
  	u32 port, port_to;
  	bool with_ports = false;
  	int ret;
  
  	if (tb[IPSET_ATTR_LINENO])
  		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
  
  	hash_netportnet6_init(&e);
  	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
  		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
  		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
  		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS)))
  		return -IPSET_ERR_PROTOCOL;
  	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
  		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
  
  	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]);
  	if (ret)
  		return ret;
  
  	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]);
  	if (ret)
  		return ret;
  
  	ret = ip_set_get_extensions(set, tb, &ext);
  	if (ret)
  		return ret;
  
  	if (tb[IPSET_ATTR_CIDR]) {
  		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
  		if (e.cidr[0] > HOST_MASK)
  			return -IPSET_ERR_INVALID_CIDR;
  	}
  
  	if (tb[IPSET_ATTR_CIDR2]) {
  		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
  		if (e.cidr[1] > HOST_MASK)
  			return -IPSET_ERR_INVALID_CIDR;
  	}
  
  	ip6_netmask(&e.ip[0], e.cidr[0]);
  	ip6_netmask(&e.ip[1], e.cidr[1]);
  
  	e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
  
  	if (tb[IPSET_ATTR_PROTO]) {
  		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
  		with_ports = ip_set_proto_with_ports(e.proto);
  
  		if (e.proto == 0)
  			return -IPSET_ERR_INVALID_PROTO;
  	} else {
  		return -IPSET_ERR_MISSING_PROTO;
  	}
  
  	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
  		e.port = 0;
  
  	if (tb[IPSET_ATTR_CADT_FLAGS]) {
  		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
  
  		if (cadt_flags & IPSET_FLAG_NOMATCH)
  			flags |= (IPSET_FLAG_NOMATCH << 16);
  	}
  
  	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
  		ret = adtfn(set, &e, &ext, &ext, flags);
  		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
  		       ip_set_eexist(ret, flags) ? 0 : ret;
  	}
  
  	port = ntohs(e.port);
  	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
  	if (port > port_to)
  		swap(port, port_to);
  
  	if (retried)
  		port = ntohs(h->next.port);
  	for (; port <= port_to; port++) {
  		e.port = htons(port);
  		ret = adtfn(set, &e, &ext, &ext, flags);
  
  		if (ret && !ip_set_eexist(ret, flags))
  			return ret;
  
  		ret = 0;
  	}
  	return ret;
  }
  
  static struct ip_set_type hash_netportnet_type __read_mostly = {
  	.name		= "hash:net,port,net",
  	.protocol	= IPSET_PROTOCOL,
  	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
  			  IPSET_TYPE_NOMATCH,
  	.dimension	= IPSET_DIM_THREE,
  	.family		= NFPROTO_UNSPEC,
  	.revision_min	= IPSET_TYPE_REV_MIN,
  	.revision_max	= IPSET_TYPE_REV_MAX,
  	.create		= hash_netportnet_create,
  	.create_policy	= {
  		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
  		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
  		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
  		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
  		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
  		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
  	},
  	.adt_policy	= {
  		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
  		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
  		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
  		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
  		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
  		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
  		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
  		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
  		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
  		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
  		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
  		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
  		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
  		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
  		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING,
  					    .len  = IPSET_MAX_COMMENT_SIZE },
  		[IPSET_ATTR_SKBMARK]	= { .type = NLA_U64 },
  		[IPSET_ATTR_SKBPRIO]	= { .type = NLA_U32 },
  		[IPSET_ATTR_SKBQUEUE]	= { .type = NLA_U16 },
  	},
  	.me		= THIS_MODULE,
  };
  
  static int __init
  hash_netportnet_init(void)
  {
  	return ip_set_type_register(&hash_netportnet_type);
  }
  
  static void __exit
  hash_netportnet_fini(void)
  {
  	rcu_barrier();
  	ip_set_type_unregister(&hash_netportnet_type);
  }
  
  module_init(hash_netportnet_init);
  module_exit(hash_netportnet_fini);
  